How many kinds of installation tests are there for two tapered bearings on the same shaft?
If installed in large quantities, use hydraulic press. When pressing, the outer end surface of the outer ring and the outer shoulder of the shell face shall be ensured, and the inner ring end face is tightly pressed with the shoulder end of the shaft platform, and no gap is allowed.When the interference is large, the oil bath heating or the inductor heating bearing method can be adopted to install the heating temperature range of 80 DEG C, -100 DEG C, and the maximum heating temperature can not exceed 120 DEG C. At the same time, the nut or other appropriate method is used to fasten the bearing so as to prevent the contraction of the bearing in the direction of width and to create a gap between the collar and the shaft shoulder.Single row tapered roller bearing installation, final clearance adjustment should be carried out. The clearance value shall be determined according to the working conditions and the magnitude of the interference fit. Test shall be carried out when necessary. Double row tapered roller bearings and pump shaft bearings have been adjusted for clearance at the factory, and no adjustment is necessary during installation.Bearings should be installed after the rotation test, first hand rotation shaft or bearing box, without exception, then the power for no load, low speed operation, and then gradually increase as the functioning of the rotation speed and load, and to detect noise, vibration and temperature, abnormal, stop operation and check. The running test is normal and can be used before delivery.
Mounting of bearings:The installation of bearings must be carried out in a dry, clean environment. Before installation, the machined surface of the shaft and shell, the shoulder end, the groove and the joint surface shall be carefully inspected. All mating surfaces must be carefully cleaned and removed, and the cast surface must be clean except for the remaining sand.Before the installation of bearings, should be cleaned with gasoline or kerosene, dry after use, and ensure good lubrication, bearings generally use grease, oil lubrication can also be used. Grease lubrication, grease, rust, extreme pressure and other high performance greases should be used. Grease filling capacity for bearings and bearing box volume of 30%-60%, should not be too much. Double row tapered roller bearing and water pump shaft bearing with sealing structure have been filled with grease, which can be used directly by users and can not be cleaned again.Bearing installation, must be applied equally in the circumference of ferrule end face pressure to press into the ring, and may not directly tap bearing end face to the top tool, so as not to damage the bearing. Small amount of interference in the case, at room temperature can be used to suppress sleeve bearing ring face, beating with a hammer sleeve, the sleeve will be pressed into the ring balance.
The tapered roller bearings belong to separate bearings, and the inner and outer rings of the bearing have tapered raceways. The bearings are divided into single row, double row and four row tapered roller bearings according to the number of rollers arranged. Single row tapered roller bearings can bear radial loads and axial loads in a single direction. When the bearing is subjected to radial load, an axial component is produced, so that when another bearing is required to bear the axial force in the opposite direction, it will be balanced.AskTwo tapered bearings are mounted on the same shaft is face to face, back to back, or along a direction?Chasing the answerTake it and continue to answer it for you.
